1. Determining Mean I with formula
Mean Variable I = 2.
Determining Mean II with formula Mean Variable II =
3. Determining of Standard Deviation of Variable I
SD
x
=
√
4. Determining of Standard Deviation of Variable II
SD
y
=
√
5. Determining Standard of Error Mean of Variable I
SEMx =
√
6. Determining Standard of Error Mean of Variable II
SEMy =
√
7. Determining Standard of Error Mean of Variable I
SEMx – My
=
√
8. Determiningt
o
with formula
t
o
= M
x
– M
y
SEM
x
– M
y
9. Determining t – table in significance level 5 and 1 with df.
df = N2+ N1 – 2
CHAPTER IV RESEARCH FINDINGS
A. Data Description
To know the result of the tests pre-test and post-test the writer made the table of students score from both classes experimental class and control class. Here
the result of students’ scores in the control class through Expository Technique in teaching narrative text.
Table 4.1 The Results of Pre-test and Post-Test of the Control Class
Students N
Pre-test Post-
test Gained
Score 1
65 70
5 2
60 70
10 3
40 60
20 4
50 70
20 5
70 75
5 6
60 70
10 7
50 55
5 8
30 60
30 9
50 60
10 10
55 65
10 11
80 85
5 12
75 80
5 13
60 60
14 50
60 10
15 30
55 15
16 40
60 20
17 55
60 5
32
18 70
75 5
19 60
75 15
20 70
75 5
Total 1120
1340 210
Average 56
67 10,5
The table above describes the students’ score of the control class in learning narrative by using Expository Technique at the second grade students of Madrasah
Tsanawiyah Setu Tangerang Selatan in odd semester. Based on table above, the writer concluded that the average score is 56,3 for pre-test, 66,65 for post-test and
the gain score is 10,35. The following table is the result of students’ score of the experiment class
through Jigsaw technique in teaching narrative text.
Table 4.2 The Results of Pre-test and Post-Test of the Experimental Class
Students N
Pre-test Post-test Gained
Score 1
35 55
20 2
45 60
15 3
45 70
25 4
70 75
5 5
55 70
15 6
60 80
20 7
30 60
30 8
50 70
20 9
45 60
15 10
25 60
30 11
40 75
35
12 40
55 15
13 40
50 10
14 70
85 15
15 55
70 20
16 65
80 25
17 50
80 30
18 60
85 30
19 55
65 10
20 75
80 5
Total 1010
1390 390
Average 50,5
69,5 19,5
The table above describes the students’ score of the experiment class in learning narrative text by using Jigsaw technique at the second grade students of
Madrasah Tsanawiyah at Setu Tangerang Selatan in odd semester. Based on table above, the writer concluded that the average score is 50,5 for pre-test, 69,5 for
post-test and 19,5 for the gain score. The next table is the statistical calculation of the gain scores both the
experiment class through Jigsaw technique and the control class through Expository Technique in Narrative text.
